<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">

<head>
    <title>摇一摇抽签</title>
    <meta charset="utf-8">
    <style>
        * {
            font-family: "Helvetica Neue", Helvetica, "Hiragino Sans GB", "STHeitiSC-Light", "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
        }
        html, body {
            margin: 0;
            width: 100%;
            height: 100%;
            background: url("./img/background.jpg") no-repeat center center;
            background-size: cover;
        }

        /* 签筒摇动动画 */
        @keyframes play {
            100% {
                background-position: -737px -2px;
            }
        }
        @-webkit-keyframes play {
            100% {
                background-position: -737px -2px;
            }
        }
        .sprite {
            width: 145px;
            height: 300px;
            display: inline-block;
            overflow: hidden;
            background: url('./img/animation.png') no-repeat -2px -2px;
            animation: play 0.8s steps(5) infinite;
            -webkit-animation: play 0.8s steps(5) infinite;
        }
        
        /* 半透明遮罩层 */
        .cover {
            background-size: 50%;
            background: rgba(0, 0, 0, 0.7) no-repeat top right;
            position: fixed;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            display: none;
        }

        /* share */
        .share {
            position: absolute;
            width: 60%;
            top: 2px;
            right: 2px;
        }

        /* 解签的过渡图 */
        .decode .inner {
            width: 100%;
            height: 100%;
            background: url('./img/decode.png') center no-repeat;
            background-size: 80%;
        }

        /* 签筒摇动动画容器 */
        .item {
            width: 100%;
            text-align: center;
            position: absolute;
            top: 26%;
        }

        /* 静态签筒定位用的容器 */
        .qiancover{
            background-size: 50%;
            position: absolute;
            width: 100%;
            top: 26%;
            display: block;
        }
        
        /* 静态签筒 */
        .qian {
            width: 100px;
            height: 300px;
            margin: 0 auto;
            overflow: hidden;
            background: url('./img/qiantong.png') no-repeat -2px -2px;
            background-size: contain;
        }
        @media only screen and (max-height: 480px) {
            /*针对iphone 4s这类小屏幕手机优化签筒大小*/
            .qian {
                width: 88px;
            }
        }

        /* 对联标题 */
        .title {
            color: #d50000;
            position: absolute;
            top: 10%;
            width: 100%;
            text-align: center;
        }


        /* 摇晃按钮的动画 */
        @keyframes shake {
            0% {
                transform: scaleY(1) translate(30px);
            }
            50% {
                transform: translate(-30px);
            }
            100% {
                transform: scaleY(1) translate(30px);
            }
        }

        /* 底部摆动按钮的样式 */
        .buttonBox {
            position: absolute;
            bottom: 5%;
            width: 100%;
        }
        .shakeBtn {
            width: 76%;
            max-width: 300px;
            display: block;
            margin: 0 auto;
            cursor: pointer;
            /*animation: shake 1.5s steps(5) infinite;*/
            animation: shake 1.2s cubic-bezier(0, 0, 0.36, 1) infinite;
        }

    </style>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
</head>

<body>
    <div style="display:none">
        <!--这个隐藏的gif用于分享到微信时自动作为缩略图-->
        <img src="./img/thumbnail.gif" />
    </div>
    <h2 class="title">摇一摇, 来抽签</h2>
    <section class="qiancover">
        <div class="qian"></div>
    </section>

    <section class="buttonBox">
        <img src="./img/button02.png" class="shakeBtn" onclick="start();">
    </section>

    
    <div class="cover result">
        <img src="./img/share.png" class="share">
        <div class="item">
            <div class="sprite a1"></div>
        </div>
    </div>

    <div class="cover decode">
        <div class="inner"></div>
    </div>

    <script src="./js/zepto.min.js"></script>
    <script src="./js/index.js"></script>
</body>

</html>
